Space neutron radiation shielding property of continuous fiber and functional filler reinforced polymer composite using Monte Carlo simulation

Liu, Benben; Gu, Yi; Liu, Yushun; Wang, Shaokai; Li, Min

doi:10.1016/j.compositesa.2023.107483

Cited by 10 publications

(1 citation statement)

References 34 publications

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“…The protection feature of continuous fiber and functional filler reinforced epoxy-based polymer composite from space neutron radiation was examined using Monte Carlo simulations. As a result of this study, it was reported that boron content is very important for shielding thermal neutrons and the type of fiber used affects the fast neutron shielding performance [7]. The space neutron shielding capabilities of a polymer composite material based on poly-tetra-fluoro-ethylene, Bi 2 O 3 bismuth oxide, WC tungsten carbide, B 4 C boron carbide, TiH 1.7 titanium hydride were studied.…”

Section: Introductionmentioning

confidence: 99%

Detailed Monte Carlo simulations on secondary radiation emissions of polymer based neutron shielding materials

Korkut,

Korkut

2024

Phys. Scr.

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Since radiation safety is a sensitive issue in terms of health, this situation poses a significant problem. In order to raise awareness among researchers while preparing future studies on this problem, in this study, the interactions between fast neutrons and 10 different polymer-based shielding materials determined from the literature were modeled with the GEANT4 Monte Carlo code. The fast neutron shielding performances of the samples and the emitted secondary radiation and radioactivity have been reported. When evaluated number and mean energies of created particles, in order to solve this problem, the sum of the risk factors obtained by multiplying these values for each sample can provide us with the opportunity to make a more accurate evaluation. When these values are examined, sample P9 is at the top of the risk ranking with a value of 1823472, while sample P6 is at the bottom with a value of 146246. As a result, it has been revealed that these samples, which have good fast neutron shielding properties, also produce high levels of radiation and radioactive nuclei.

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Section: Introductionmentioning

confidence: 99%

Detailed Monte Carlo simulations on secondary radiation emissions of polymer based neutron shielding materials

Korkut,

Korkut

2024

Phys. Scr.

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Progress in Ionizing Radiation Shielding Materials

Wu,

Wang

2024

Adv Eng Mater

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The continuous development of ionizing radiation in medical imaging and treatment, nuclear reactors, food irradiation, and other fields is accompanied by potential risks. It protects related equipment and personnel by adopting radiation shielding materials to reduce irradiation. Due to the advancement of science and technology, many high‐performance radiation protection materials have been reported. Ionizing radiation is a complex environment involving X‐ray imaging, radiation therapy, nuclear power operation, and space radiation. Irradiation energy, irradiation type, and the measurement of shielding material have essential effects on shielding efficiency. However, there has not been a general review of the preparations and properties of ionizing radiation shielding materials in the light of different matrixes in recent years. Herein, a comprehensive overview of recent advancements in radiation shielding materials, categorized into alloys, concretes, glasses and ceramics, and polymer composites, is presented. Furthermore, the synthesis methods employed for these materials and their respective radiation shielding properties are discussed. Finally, the current research gap and possible future scope of radiation shielding materials are proposed.

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Gamma‐ray and neutron attenuation of carbon fiber/epoxy composites with carbon nanotubes and boron nitride nanoparticles for passive shielding applications in space

Peker,

Erbay,

Çetin

et al. 2024

Polymer Composites

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Composite materials have made far‐reaching changes in the space industry since they have been adopted into the structural and thermal control subsystems of space vehicles because of their several multi‐functions, including being lightweight as well as having advanced mechanical and thermal properties. The use of composites as space radiation shielding materials is also one of the most crucial applications because space radiation is a major impediment for current and future deep‐space missions. Investigation of carbon fiber composites with a diverse array of element and nanoparticle reinforcements has revealed their potential as an alternative to conventional radiation shielding materials in space. This study focused on the alleviation of gamma‐ray and neutron radiation by carbon fiber/epoxy composites incorporated with various weight ratios of carbon nanotube (CNT) and boron nitride (BN) nanoparticles. A narrow beam geometry setup was used for gamma radiation tests with a Cs‐137 gamma‐ray source, while neutron radiation experiments were conducted in a neutron howitzer with a 239Pu‐Be neutron source. Six groups of specimens, namely, pure carbon fiber/epoxy, 0.5 wt% CNT, 0.5 wt% BN, 0.5 wt% CNT + 0.5 wt% BN, 1 wt% CNT + 1 wt% BN, and 2 wt% BN, were examined against these two types of radiation. Results have indicated that the 2 wt% BN specimen showed the best attenuation properties against both gamma‐ray and neutron radiation among all tested specimens; furthermore, it was almost three times more effective against neutron radiation than against gamma‐ray radiation.Highlights Varying weight ratios of CNT and BN nanoparticles used for radiation shielding. A Cs‐137 gamma‐ray source used in narrow beam geometry. Neutron radiation studies were conducted in a 239Pu‐Be neutron howitzer. The 2 wt% BN sample showed the best attenuation against gamma‐ray and neutron radiation. It resulted in an HVL of 6.86 cm for gamma‐ray radiation and 2.13 cm for neutron radiation.

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Space neutron radiation shielding property of continuous fiber and functional filler reinforced polymer composite using Monte Carlo simulation

Cited by 10 publications

References 34 publications

Detailed Monte Carlo simulations on secondary radiation emissions of polymer based neutron shielding materials

Detailed Monte Carlo simulations on secondary radiation emissions of polymer based neutron shielding materials

Progress in Ionizing Radiation Shielding Materials

Gamma‐ray and neutron attenuation of carbon fiber/epoxy composites with carbon nanotubes and boron nitride nanoparticles for passive shielding applications in space

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